Home / 87,809.76-131,736.24-25,479.36

Finding the Fourth Proportional to 87,809.76, 131,736.24 and 25,479.36

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Solution

The fourth proportional to 87,809.76, 131,736.24 and 25,479.36 is: 38,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.76 : 131,736.24 = 25,479.36 : x
  2. Step 2: Convert to fraction form
    87,809.76/131,736.24 = 25,479.36/x
  3. Step 3: Cross multiply
    87,809.76x = 131,736.24 × 25,479.36
  4. Step 4: Simplify right side
    87,809.76x = 3,356,555,084.01
  5. Step 5: Solve for x
    x = 3,356,555,084.01/87,809.76
  6. Step 6: Final answer
    x = 38,225.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.